Question

दो समरूप त्रिभ्युजों ABC तथा DEF के क्षेत्रफल क्रमशः 64 से.मी.2
और 121 से.मी. है। यदिEF=15.4 से.मी. है तो BC का मान ज्ञात
कीजिए।​

Answer 1

Answer:

Step-by-step explanation:

∆ABC~∆DEF

Then,we know that

ar(∆ABC)/ar(∆DEF)=(AB/DE)²=(BC/EF)²=(AC/DF)²

Now,

ar(∆ABC)/ar(∆DEF)=(BC/EF)²

64/121=(BC/15.4)²

√(64/121)=BC/15.4

8/11=BC/15.4

8×15.4/11=BC

8×1.4=BC

11.2cm=BC

BC=11.2cm

Answer 2

Answer:

dvrvtbgrqwhey

Step-by-step explanation:

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